diff --git a/core/modules/config_translation/lib/Drupal/config_translation/FormElement/TextFormat.php b/core/modules/config_translation/lib/Drupal/config_translation/FormElement/TextFormat.php
index 534b2dc..4b5d14a 100644
--- a/core/modules/config_translation/lib/Drupal/config_translation/FormElement/TextFormat.php
+++ b/core/modules/config_translation/lib/Drupal/config_translation/FormElement/TextFormat.php
@@ -32,11 +32,21 @@ public function getTranslationElement(array $definition, LanguageInterface $lang
    */
   public function getSourceElement(array $definition, LanguageInterface $source_language, $base_config) {
     // Instead of the formatted output show a disabled textarea. This allows for
-    // easier side-by-side comparison, especially with for formats with text
+    // easier side-by-side comparison, especially with formats with text
     // editors.
-    return $this->getTranslationElement($definition, $source_language, $base_config) + array(
+    $element = $this->getTranslationElement($definition, $source_language, $base_config) + array(
+      '#value' => $base_config['value'],
       '#disabled' => TRUE,
+      '#allow_focus' => TRUE,
     );
+    // Because #input is set to FALSE in
+    // ConfigTranslationFormBase::buildConfigForm(),
+    // FormBuilder::handleInputElement() is not called on this element.
+    // Therefore we need to set the appropriate attribute manually.
+    $element['#attributes']['readonly'] = 'readonly';
+    // @todo CKEditor does not support the 'readonly' attribute.
+    $element['#attributes']['disabled'] = 'disabled';
+    return $element;
   }
 
 }
diff --git a/core/modules/config_translation/tests/modules/config_translation_test/config_translation_test.local_tasks.yml b/core/modules/config_translation/tests/modules/config_translation_test/config_translation_test.local_tasks.yml
new file mode 100644
index 0000000..92581b4
--- /dev/null
+++ b/core/modules/config_translation/tests/modules/config_translation_test/config_translation_test.local_tasks.yml
@@ -0,0 +1,7 @@
+# Add a default local task for the file system settings page, so that the local
+# task added by Configuration Translation becomes visible. This facilitates
+# manual testing.
+system.file_system_settings:
+  route_name: system.file_system_settings
+  title: Settings
+  base_route: system.file_system_settings
diff --git a/core/modules/editor/editor.module b/core/modules/editor/editor.module
index 9da1540..dcf85d6 100644
--- a/core/modules/editor/editor.module
+++ b/core/modules/editor/editor.module
@@ -257,9 +257,8 @@ function editor_pre_render_format($element) {
   }
 
   // filter_process_format() copies properties to the expanded 'value' child
-  // element. Skip this text format widget, if it contains no 'format' or when
-  // the current user does not have access to edit the value.
-  if (!isset($element['format']) || !empty($element['value']['#disabled'])) {
+  // element. Skip this text format widget, if it contains no 'format'.
+  if (!isset($element['format'])) {
     return $element;
   }
   $format_ids = array_keys($element['format']['format']['#options']);